Haworthia reinwardtii

I do the same thing, Jim. I have been cutting all the seeds off so the plant will bloom longer, but plan to stop doing that soon, so there will be seeds. Each pod will have quite a lot of seeds. I have trouble getting them to germinate usually. Last year I was gone for a month, and came home to LOTS of seed pods on my yellow Datura (moonflower), so I cut them off and just threw them in a bucket that had holes in the bottom. NO DIRT. I thought I would discard them, but neglected to do so. This spring the 3/4 full bucket of seeds started to sprout! I just took the plants out and put them in dirt and more would sprout! There are still seeds in that bucket sprouting as I type. I guess when I don't try I get better results! LOL My white one doesn't have as many seeds, or blooms, as the yellow one, or the purple one. This year I may have a bucket for each color! Grin!

Gymnocalycium is the genus, but as far as species I don't know.

the pic closeup... fails to provide a scale ... how long are those leaves??? it reminds me of https://duckduckgo.com/?q=Cerastium+tomentosum+&t=ffcm&iar=images&iax=images&ia=images aka snow in the summer... but i have no idea what or how it is doing in AZ ... lol .. as i said.. you just triggered a childhood memory ... i cant fathom thats what it is ... ken